Application of cement to an insole



Apmilil WW J. 5. KAMBORIAN APPLICATION OF CEMENT TO AN INSOLE Filed May 7, 1964 v 7 Sheets-Sheet l l/V l E/V TOR Jacob 5. Wo'mbor/an APPLICATION OF CEMENT TO AN INSOLE Filed May '7, 1964 7 Sheets-Sheet 2 wfifl 4%,, mm J. 5. KAMBORHAN 3y3nwggg5 APPLICATION OF CEMENT TO AN INSOLE Filed May 7, .1964 7 Sheets-Sheet 3 W J. 5. KAMBQWHAN mnmw APPLICATION OF CEMENT TO AN INSOLE Filed-May 7, 1964 '7 Sheets-Sheet 4 J. s'. KAMBORIAN 3,311,938

APPLICATION OF CEMENT TO AN INSOLE April 4, 1967 '7 Sheets-Sheet 5 Filed May 7, 1964 April 4, 1967 J. s. KAMBORIAN 3,311,938

' APPLICATION OF CEMENT TO AN INSOLE v Filed May '7, 1964 7 Sheets-Sheet 6 April 4, 1967 .1. s. KAMBORIAN 3,311,938

APPLICATION OF CEMENT TO AN INSOLE Filed May 7, 1964 7 Sheets-Sheet 7 FIG. -//A United States Patent Office 3,311,938 APPLICATION OF CEMENT TO AN INSOLE Jacob S. Karnborian, 70 Crestwood Road, West Newton, Mass. 02165 Filed May 7, 1964, Ser. No. 365,707 10 Claims. (Cl. 12-145) This invention relates to the application of cement to a selected portion of a shoe insole prior to wiping the corresponding portion of a shoe upper against the insole portion.

It is common practice to utilize thermoplastic cement in heated liquid form to bond a shoe upper to a shoe in sole in a cement lasting operation. These cements have a tendency to solidify quickly after being applied to the parts to be bonded and the parts to be bonded must therefore be forced against each other shortly after the application of the cement.

In the instant invention the cement is extruded from an applicator against the selected portion of the insole and the applicator is moved away from the insole shortly before the corresponding portion of the upper is wiped by wipers against the insole portion. During the movement of the applicator away from the insoe the extrusion of cement from the applicator is terminated so that the cement will not splatter on the insole, wipers or other arts.

p In the illustrative embodiment of the invention, the toe pulling over and lasting machine disclosed in application Ser. No. 340,411 filed Ian. 27, 1964, has been modified to incorporate the cement applicator of this invention and the toe portions of the upper and insole are the selected portions that are wiped against each other and bonded. The modified machine operates on a shoe assembly that comprises a last having the insole located on its bottom and the upper mounted thereon.

In the accompanying drawings:

FIG. 1 is a side elevation view of the machine;

FIG. 2 is a front elevation view of the upper portion of the machine with a heel clamp on the machine omitted for purposes of clarity;

FIG. 3 is a vertical section showing a mechanism for mounting a support for the shoe assembly and the applicator for heightwise movement;

FIG. 4 is a plan view of the support and applicator;

FIG. 5 is a section taken on the line 55 of FIG. 4;

FIG. 6 is a view to a larger scale taken on the line 6-6 of FIG. 5;

FIG. 7 is a section of a cement extruding mechanism;

FIG. 8 is a representation of the shoe assembly when it is initially placed in the machine;

FIG. 8A is a view taken on the line 8A-8A of FIG. 8;

FIG. 8B is a view taken on the line 8B-8B of FIG. 8A;

FIG. 9 is a representation of the shoe assembly in the machine at the completion of a pulling over operation;

FIG. 9A is a view taken on the line 9A-A of FIG. 9;

FIG. 9B is a view taken on the line 9B9B of FIG. 9A;

FIG. 10 is a representation of the shoe assembly as it rises through a shoe conformer in the machine;

FIG. 11 is a representation of the shoe assembly after it has completed its rise through the shoe conformer and is about to be acted on by the wipers;

FIG. 11A is a view taken on the line 11A11A of FIG. 11;

FIG. 11B is a view taken on the line 11B-11B of FIG. 11A;

FIG. 12 is a representation of the position of the wipers with respect to the shoe assembly before the wipers begin their wiping operation; and

3,311,933 Patented Apr. 4, 1967 FIG. 13 is a representation of a knife cutting into the upper during the wiping movement.

Referring to FIG. 1, the machine comprises a frame 10 that incorporates a base plate 12 that has a sleeve 14 extending downwardly therefrom. For convenience of operation, the machine is inclined about 30 degrees from the horizontal. However, parts extending in the direction of the plate 12 will hereafter be referred to as extending horizontally and parts extending in the direction of the sleeves 14 will hereafter be referred to as extending vertically. The operator is intended to stand in front of the machine (to the left of the machine in FIG. 1). Parts extending toward the operator (to the left in FIG. 1) will be referred toas forward and parts extending away from the operator (to the right in FIG. 1) will be referred to as rearward.

An air operated motor 16 (FIGS. 1 and 3) is secured to a cap 18 at the bottom of the sleeve 14 and a toe post 20 is secured to the piston rod 22 of the motor 16 to extend vertically and be slidable in the sleeve 14. A roller 24, bolted to the sleeve 14, is received in a vertical slot 26 in the post 20 to preclude rotation of the post about the axis of the sleeve.

A toe post extension 2 8 is secured to the upper end of the post 20 (FIGS. 3 and 5). A nut 30 that is rotatable in a groove 32 in the toe post extension has a bolt 34 threaded therein. The bolt 34 is secured to a plate 36 that is slidable in gibs 38 that are secured to the post extension 28. A shoe assembly support in the form of a platform 40 is secured to the top of the plate 36. By adjusting the nut 39 the vertical position of the platform 40 may be adjusted.

An air operated motor 42 (FIG. 3) is threaded into the post extension 28. A slide 44 is slidably mounted in the post extension 28 for vertical movement and is movable by a toggle mechanism comprising a toggle link 46 that is pivoted to the slide 44 and a toggle link 48 that is pivoted to the post extension 28 and the link 46. A tension spring 50, extending between the link 46 and a rearwardly extending ledge 52 on the post extension normally keeps the toggle links broken with the link 48 bearing against a cam 54 on the piston rod 56 of the motor 42.

A block 58 is connected to the slide 44 and a strut 60 is connected to the block and extends upwardly of the block (FIG. 5). An applicator 62 is secured to the top of the strut 60. The applicator comprises a base section 64 that lies below the toe platform 40 and a forked extruding section 6 6 that extends upwardly of the base section and lies outwardly of the platform 40.

A ferrule 67 is fitted into the strut 60 and an end of a conduit 68 is anchored in the ferrule. The conduit, which is constructed similarly to the conduit shown in pending application Ser. No. 285,446 filed June 3, 1963, is made of a tube that is thermally and electrically insulative such as silicone and has a resistor wire 70 running therethrough. The conduit extends through a slot 72 in the plate 36. The conduit and ferrule have aligned openings 74 and 76.

A prong 78 having a vertical bore 79 therein extends upwardly from the strut 60 into the applicator base section 64. As shown in FIG. 6, the prong has radial ports 80 that are in communication with ports 82 in the applicator 62. The ports 82 are in communication with a passage 84 that extends about the applicator extruding section 66 close to its outer periphery. A plurality of spaced holes 86 extend upwardly from the passage 84 and intersect the top of the applicator extruding section 66. A groove 88 is provided in the top of the section 66 between the holes 86. A valve 90 is located in a cavity 91 in the strut 60. The valve is normally seated at the base of the prong 78 to cover the bore 79 by a compression spring 92 extending between the valve and a ledge in the ferrule opening 76. The valve has a stem 94 that extends upward through the bore 79 and is slidable in a cap 96 at the top of the prong 78. The valve stem 94 is in alignment with a hole 98 in the platform 40.

The machine includes a cement extruding mechanism 100 that is secured to the frame (FIG. 1). Referring to FIG. 7, this mechanism which is made similarly to the mechanism disclosed in the aforementioned application Ser. No. 285,446, includes a cement pot 102 mounted on a fixed base 104, the base 104 being mounted on the frame 10 by a bracket 106. The pot is made of a heat conductive material such as aluminum and includes a well 108 in which thermoplastic cement may be deposited. Heating means, that include an electric cartridge heater 110 embedded in the pot, are provided to heat the pot. A ferrule 112 is threaded into a hole in the bottom of the well. The ferrule has a centrally located small diameter passage 114 that opens into a large diameter passage 116. A ball 118, resting on a pin 120 extending across the passage 116, is cooperative with the passage 114 to act as a valve in the manner described below. The passage 116 opens into a chamber 122 by way of a port 124. A sleeve 126, threaded into a guide hole 128 above the chamber 122, has an axial bore 130 that intersects a plurality of radial ports 132 that extend from the bore 130 to the chamber 122. The bore 130 is connected to the bottom of the sleeve 126 by a bore 134. A plate 136 is supported above the pot 102 by a pair of spacer sleeves 138, only one of which is shown in FIG. 7. An air operated motor 140 is threaded into the plate 136 and has a piston rod 142 depending therefrom. A stem 144 is secured to the lower end of the piston rod 142 and is slidable in the guide hole 128. A rod 146 is connected at its upper end to the stem 144 by a pivot pin 148. A plunger 150, that is slidable in the bore 130, is connected to the lower end of the rod 146 by a pivot pin 152.. A cut-out 154 provides communication between the well 108 and the guide hole 128. A base 156 is fitted to the bottom of the sleeve 126 and has a hole 158 that is in communication with the bore 134. A bracket 160 is fitted to the bottom of the base 156 by a threaded cap 162. The bracket 160 has a hole (not shown) extending therethrough that is in communication with the hole 158 and has a hollow prong 164 extending downwardly thereof. The end of the conduit 68 remote from the ferrule 67 is fitted on the prong 164.

The machine includes a pair of front pincers 166 (FIG. 2) located rearwardly of the platform 40 and applicator 62. The pincers comprise a pair of relatively movable jaws (FIG. 8) that are mounted for downward and rearward movement from the position shown in FIG. 8.

A front retarder blade 168 is mounted in the machine between the applicator 62 and the front pincers 166 (FIG. 8). The retarder blade 168 is yieldably urged upwardly but may, at the appropriate time in the machine cycle, be moved downwardly.

An air operated motor 170 is mounted on the ledge 52 (FIG. 2) on each side of the platform 40 and applicator 62. A side retarder 172 is mounted on the piston rod 174 of each motor 170.

A base 176 (FIG. 3) is slidably mounted on the toe post 20 below the toe post extension 28 and above the plate 12 by way of a roller 178 extending into a vertically extending slot 180 in the post. A bolt 182, extending through a flange 184 in the toe post extension 28, is threaded into a nut 186 that is rotatably mounted in the flange. The bottom of the bolt 182 is threaded into the base 176 and is locked thereto by a set screw 188. Thus the base 176 is adjustably mounted on the toe post 20. An air actuated motor 190 is mounted on the base 176 forwardly of each side retarder 172 on each side of the platform 40 (FIGS. 1 and 2). Each motor 190 is mounted on a universal joint 192 and is normally urged by gravity to a fixed forward position due to the inclination of the base 176. A tension spring 194 extending between each motor 190 and the base 176 serves to yieldably urge the base 196 of each motor 190 outwardly against a cam 198 mounted on the base. The piston rod 200 of each motor 190 has an air actuated motor 202 connected thereto that is slidably mounted in the motor 190. A side pincers 204 is mounted on each motor 202. Each pincers 204 comprises a pair of relatively movable jaws that can be opened and closed in response to the movement of the piston rod (not shown) of its associated motor 202.

A-pair of bars 205 are slidably mounted in the frame in bosses 206. A heel clamp 208 (FIGS. 1 and 11) extends between the bars 205 forwardly of the platform 40. Air operated motors (not shown) are provided to move the bars 205 and heel clamp 208 forwardly and rearwardly and to lock the bars in position.

A slide plate 210 (FIG. 2) is slidably mounted in the frame 10'on gibs 212. A rack 214 (FIG. 1) is connected through a linkage (not shown) and is operated by an air operated motor (not shown) to effect the movement of the slide plate 210 in the frame.

A lever 216 (FIGS. 1 and 2) is pivotally mounted on a pin 218 secured to the side plate 210. The lever has a forward leg extending forwardly and upwardly of the pin 218 on which a toe hold-down 220 is mounted. A rear leg of the lever 216 (not shown) that extends downwardly and rearwardly of the pin 218 bears against the underside of a striker plate (not shown) that is fixed in the frame 10 so that when the slide plate 210 is in a rearward position the hold-down 220 is in an elevated position as shown in FIG. 1. The lever legs are so constructed that when the slide plate 210 is moved forwardly and the rear leg of the lever 210 escapes the striker plate the lever will swing counter-clockwise (FIG. 1) to lower the hold-down 220. A cam (not shown) is slidably mounted in the frame 10 in alignment with the rear lever leg. The cam is actuable by an air operated motor 222 (FIG. 1) to be brought to bear against the rear lever leg toforce the lever 216 counterclockwise under pressure.

An air actuated motor 224 is secured to the slide plate 210 above the motor 222. A pair of symmetrically disposed wipers 226 (FIGS. 2 and 12) are mounted on the slide plate 210 for movement with respect thereto. A knife 228 (FIGS. 2 and 12) is mounted in cut-outs provided in adjoining surfaces of the wipers.

A cover block 230 is secured to the slide 210 and extends above the wipers 226. A shoe conforming pad or yoke 232 (FIGS. 2 and 10) is mounted in the block 230. The yoke is of substantially U-shape and has a bight 234 and a pair of legs 236 extending forwardly of the bight on opposite sides of the bight. Means (not shown) are provided to yieldably urge the yoke bight forwardly and an air operated motor 238 is connected to each yoke leg to supply air under pressure to yieldably urge the yoke legs inwardly.

In the operation of the extruding mechanism 100, thermoplastic cement is deposited in the well 108 of the pot 102 by any means found desirable, as for example by the dispensing mechanism shown in Patent No. 3,011,042. The cement is maintained in a molten condition in the pot 102 by means of the heating means in the pot including the heater 110. At this time the plunger 150 is in the FIG. 7 position and the ball 118 is resting on the pin so that the molten cement gravitates into the chamber 122 by way of the passages 114 and 116 and the port 124. From the chamber 122 the molten cement enters and fills the bore by way of the radial ports 132 and fills the conduit 68 by way of the bore 134, the hole 158 and the hole extending through the bracket 160. From the conduit 68 the molten cement passes through the openings 74 and 76 and the cavity 91 where it is blocked by the valve 90. The cement is maintained molten in the conduit 68 by the resistor wire 70 and is maintained molten in the cavity 91 by electric heaters (not shown) in the ferrule 67.

In the idle condition of the machine, the piston rod 22 of the motor 16 and the toe platform 40 and applicator 62 are in a lowered condition, the motor 42 is in the FIG. 3 position so that the applicator 62 is in a lowered position with respect to the platform 41) as indicated in FIG. 5, the front pincers 166 are open, the front retarder 168 is yieldably urged upwardly, the side retarders 172 are held in a raised position by the motors 1711, the motors 1919 are held against the cams 193 by the springs 194 and are held by gravity in a forward position due to the inclination from the vertical of the motors 1% (FIG. 1), the side pincers 204 are held in a raised position by the motors 190 with their jaws held open by the motors 202, the heel clamp 208 is held in a forward position, the slide plate 21a is held in a rearward out-of-the-way position, the lever 216 and hold-down 226 is held in the FIG. 1 position with the hold-down elevated, the wipers 226 are held in the rearward open position by the motor 224 indicated in FIG. 12, the yoke bight 234 is yieldably urged forwardly and the yoke legs 236 are yieldably urged inwardly under relatively light pressure by pressurized air entering the motors 238.

Referring to FIGS. 8, 8A and 813, a shoe assembly to be pulled over and toe lasted is presented bottom down to the machine. The shoe assembly comprises a shoe insole 249 located on the bottom of a last 242, preferably by being tacked thereto, and a shoe upper 244 draped over the last. The shoe has preferably been heel seat lasted by an apparatus such as that shown in pending application Ser. No. 353,462 filed Mar. 20, 1964. The insole is brought to bear aginst the platform 41 and the last is brought to bear against the retarders 168 and 172. The front retarder 168 and the side retarders 172 respectively act as front and side gauges to properly locate the shoe assembly in the machine. The toe end of the upper margin is placed between the open jaws of the front pincers 166 and the forepait portions of the upper margin are inserted between the open jaws of the side pincers 2114.

The operator now steps on a platform 246 (FIG. 1) to operate the control mechanism (not shown) of the machine. This causes the front pincers 166 and side pincers 2114 to close and respectively grip the toe and forepart portions of the upper margin. Then the front pincers 166 are caused to move downwardly and rearwardly to stretch the toe portion of the upper margin about the toe end of the last, the motors 190 are actuated to move the side pincers 294 downwardly to thereby stretch the forepart portions of the upper margin about the last, the motor 42 is actuated to move the cam 54 forwardly (to the left in FIG. 3) to raise the applicator 62 and bring it to bear against the margin of the toe portion of the insole and the motors 176 are actuated to lower the side retarders 172.

The machine now comes to a stop with the shoe assembly engaging parts in the position shown in FIGS. 9, 9A and 9B.

The aforesaid downward and rearward movement of the front pincers 166 causes the upper 244 to be pulled and stretched about the toe end of the last and also in a heel to toe direction. The downward movement of the side pincers 264 causes the upper at the forepart to be stretched tightly about the last. The universal joints 192 enable the motors 190 and the side pincers 2M carried thereby to swing rearwardly towards the toe of the shoe assembly and inwardly of the shoe assembly towards each other during the downward movement of the side pincers.

These toeward and inward movements of the side pincers are occasioned by the direction of pull of the front pincers 166, and the mounting of the side pincers 204 that permits their toeward and inward movements prevents the side pincers from fighting against the toe pincers during their upper stretching movements. The re sult of the aforesaid pincers movements is a tight stretching of the upper about the toe and forepart of the last with the topline 248 (FIG. 9) of the upper stretched tightly about the last. During the stretching movement of the front pincers 166, the toe end portion of the upper 244 is forced about the front retarder 168 and forces the front retarder down to some extent against the yieldable upwardly directed force applied to the front retarder. The front retarder 168, by engaging the toe end of the last 242, prevents rearward or toeward movement of the shoe assembly during the stretching movement of the front pincers 166. Since the front pincers 166 and side pincers 204 are driven in their stretching movements by yieldable forces created by air pressure, they terminate these movements when the stretching forces are equalized by the resistance to stretching of the upper. The portions of the stretched upper margin between the front and side pincers are outspread into dog ears 256 (FIG. 9A). The applicator 62, in bearing against the margin of the insole in the region of its toe, forces the insole against the bottom of the last in this region and prevents it fro-m drooping downwardly of the last bottom. During the rise of the applicator 62 to bear against the insole 24.0 the valve stem 94 is forced downwardly against the force of the spring 92 to unseat the valve from the prong 78 and uncover the bore 79. However, since the extruding mechanism 190 is not operative at this time, for all practicable purposes this does not cause cement to flow through the applicator.

At any time up to this point in the machine cycle the operator may release the platform 246 to enable the machine control to return the machine parts to their idle positions. The operator may decide to do this if the upper is not being pulled over properly. The machine may also include mechanism similar to that disclosed in Patent No. 3,233,261 for individually and selectively increasing or decreasing the downwardly directed forces of the front pincers 166 and side pincers 204 to thereby relocate the upper 244 on the last 242 if he is not satisfied with its position when the parts are in the FIGS. 9, 9A and 913 positions.

The operator may now further depress the platform 246 to enable the machine to go through the rest of its cycle. This causes the platform to be locked in position so that the operator may take his foot off the platform for the rest of the cycle. The rack 214 is now moved to cause the slide plate 210 to move from its rearward outof-the-way position to a forward working position. The forward movement of the slide plate 2141 brings the wipers 226 and the yoke 232 to a position where they can act on the shoe assembly as indicated in phantom in FIG. 9. The forward movement of the slide plate also causes the rear leg of the lever 216 to escape the aforementioned striker plate so that the lever swings counter-clockwise (FIG. 1) and the hold-down 22% swings downwardly by gravity until it engages the shoe assembly in the region of the top of the forepart of the upper and last, also indicated in phantom in FIG. 9. It is desirable to keep the wipers, yoke and hold-down in an out-of-the-way position up to this time so that they will not interfere with the placement of the shoe assembly in the machine and the operation of the above-described pulling over operation and so that the operator will be able to see if the pulling over operation is being properly performed.

Towards the end of the forward movement of the slide 210 the motor 16 is actuated to raise the toe post 20 and the parts carried thereby. During the rise of the toe post the motors 170 are actuated to raise the side retarders 172. The machine parts are so constructed that the toe post terminates its upward movement when the platform 40 and applicator 62 raise the shoe assembly to a position where the bottom of the insole 240 is above the top of the wipers 226 an amount that is substantially equal to the thickness of the upper 244-. During the rise of the shoe assembly the toe hold-down 220 rises upwardly with the lever 216 swinging clockwise (FIG. 1) about the pin 218.

The shoe assembly was initially so placed on the platform 40 that when the yoke 232 was moved to its forward working position the edges of the last 242 overlapped the inner wall 254 of the yoke as indicated in FIG. 10. When the shoe assembly is forced upwardly by the motor 16 the yoke wall 254 is initially compressed. When the wall 254 can no longer be compressed the yoke bight 234 is flexed rearwardly and the yoke legs 236 are flexed outwardly against yieldable pressure that includes the aforementioned means yieldably urging the bight of the yoke forwardly and the pressurized air in the motors 238. This causes the yoke 232 to snugly engage the upper 244 and causes the upper to snugly conform the shape of the 242 during the upward movement of the last.

During the rise of the toe post 20 front the pincers 166 are opened to thereby release the toe portion of the upper margin. As soon as the pincers 166 is disengaged from the upper margin it is moved downwardly so that it will not interfere with the wipers 226 during the rise of the toe post 20. As soon as the front pincers 166 release the toe portion of the upper margin, the latter is pressed by the front retarder 168 against the bottom of the wipers 226.

Toward the end of the rise of the toe post 20, the motor 222 is actuated under a relatively low pressure to force the aforementioned cam against the rear leg of the lever 216 to thereby swing the lever counterclockwise (FIG. 1) and cause the hold-down 220 to press downwardly against the forepart of the shoe assembly under relatively light pressure. At the same time the .bars 205 are moved rearwardly to bring the heel clamp 208 to bear against the heel of the shoe assembly and then lock the bars 205 and heel clamp 208 in place.

Up to this time pressurized air had entered the motors 238 under relatively low pressure. Toward the end of the rise of the toe post 20 pressurized air is caused to enter the motors 238 under relatively high pressure to thereby force the inner wall 254 of the yoke 232 against the toe and forepart of the shoe assembly under relatively high pressure.

The parts now assume the position shown in FIGS. 11, 11A and 11B.

The parts are so constructed that the raising of the retarders 172 during the rise of the post 20 causes the retarders to engage the dog ears 250 and press them against the bottoms of the wipers 226 with the resilient force afforded by the motors 170 at about the time that the bottom of the insole 240 is level with the bottoms of the wipers. The release of the toe end of the upper margin by the front pincers 166 during the rise of the post 20, as stated above, causes the front retarder 168 to immediately press this portion of the upper margin against the wiper bottoms. This arrangement permits the front pincers 166 to be lowered before it can interfere with the wipers and enables the front retarder 168 to engage the upper margin without losing any of the stretch in the upper that had been provided by the front pincers 166. During the final increment of the movement of the toe post 20, after the retarders 172 and 168 have pressed the upper margin against the wipe-r bottoms, the upper is further stretched about the last, and when the upper can no longer be stretched the pressed margin portions slip between the wiper bottoms and the retarders.

As aforesaid, the yoke 232 causes the upper 244 to conform to the shape of the last under the relatively light pressure entering the motors 238. The upper is firmly clamped to the last 242 after the shoe assembly has completed its rise for the subsequently performed wiping operation by means of the yoke 232 due to the relatively heavy air pressure entering the motors 238, by the application and lockingof the heel clamp 208 and by the forcing of the toe pad 220 downwardly against the forep-art of the shoe assembly.

Now the motor 224 is actuated to cause the wipers 226 to go through their wiping stroke. At about the time or shortly before the wipers start their wiping stroke the motor is actuated to move the plunger downwardly to create a pressure which forcesthe ball 118 upwardly to close the passage 114 and forces cement through the conduit 70, openings 74 and 76, cavity 91, bore 79, parts 82, passage 84 and holes 86 against the margin of the bottom of the insole in the region of its toe. The groove 88 permits the cement to flow between the holes 86 so that a continuous ribbon of cement 252 (FIG. 12) is deposited. The wipers, as shown in FIG. 12, have forwardly divergent surfaces 256 that diverge from a vertex 258. The wipers, in their wiping stroke, have a compound movement comprising a concomitant forward translatory movement and inward swinging movement about the vertex 258. This movement causes the wipers to engage the upper margin while the upper is stretched about the last, wipe or fold the margin against the insole 240 and bond the upper margin to the insole by means of the ribbon of cement 252 on the insole. At the beginning of the wiper stroke the knife 228 is located rearwardly of the vertex 258 and during the wiper stroke the knife is projected forwardly of the vertex, as seen in FIG. 13, to cut into the pleated material 260 gathered by the wipers to relieve the stress therein similarly to function performed by the knife in Patent No. 3,082,447.

As the wipers 226 move forwardly and inwardly in their wiping stroke the yieldable upwardly directed force applied to the front retarder 168 is terminated and the retarder 168 is lowered out of the paths of the wipers, the supply of pressurized .air to the motor 42 is vented so that the spring 50 lowers the applicator 62 with the respect to the platform 40 out of the path of the wipers, the motors 170 are actuated to lower the side retarders 172 out of the path of the wipers, the motors 202 are actuated to open the side pincers 204 and release the forepart portions of the upper margin and the motors .are actuated to lower the side pincers 204 out of the path of the wipers, and the motor 16 is actuated to lower the toe post 20 and thereby lower the platform 40 out of the path of the wipers. After the lowering of the platform the insole 240 is supported solely by the wipers 228. At the end of the wiper stroke the motor 222 is actuated under a relatively 'heavy pressure to force the hold-down 220 downwardly with greater pressure than had heretofore been applied to apply bedding pressure between the wiped in margin of the upper and the wipers.

During the wiping stroke the motor 140 is caused to terminate its downward movement and to raise the plunger 150 to its FIG. 7 position and thus terminate the pressure forcing the cement through the conduit 68 and the holes 86. The timing of the machine is such that the motor 140 is caused to raise the plunger 150 before the plunger reaches its lowermost position and thus cement is continuously forced through the conduit 68 during the downward movement of the plunger. Between each downward and upward cycle of the plunger 150, the molten cement fills the cement pot parts and the conduit in the manner described above. During the upward and downward movement of the plunger 150 there is molten cement both above and below the plunger. There is clearance between the plunger 150 and the bore 130 that is sufficiently large to enable a film to be formed between the plunger and bore to provide the advantages described in application Ser. No. 168,578 filed Jan. 19, 1962. The clearance is made sufficiently small as to prevent a substantial pressure loss during the working stroke of the plunger.

During the lowering of the applicator 62 with respect to the platform 40 the spring 92 again seats the valve 90 against the base of prong 78 to thereby shut off the flow of cement to the holes 86. This ensures that 9 there will be no cement splattering upwardly of the holes 86 on the insole, wipers or other parts after the applicator 62 is lowered despite any residual pressure causing cement to flow through the conduit 68.

After the bed-ding pressure has been applied for a predetermined period of time, the lock holding the platform 245 in its down position is released so that the platform can return to its initial upper position. This causes the machine control to return all of of the machine parts to their idle condition and complete the machine cycle.

It should be understood that the present disclosure is for the purpose of illustration only and that this invention includes all modifications and equivalents that fall within the scope of the appended claims.

Terms in the claims indicating positions and paths of movement such as downwardly, upper and lower have been employed primarily to define the relative positions and paths of movements of the parts and should be construed accordingly so that organizations which have equivalent relative positions and functional relationships between the parts as are defined in the claims are considered to fall within the scope of the claims regardless of whether the part literally have the defined positions and paths of movement.

I claim:

1. A method of applying cement to a selected portion of the margin of a shot insole preparatory towiping the corresponding portion of the margin of a shoe upper against said insole portion comprising: supporting a shoe assembly that includes a last having the insole located on its bottom; positioning an applicator against said insole portion; commencing to extrude cement from the applicator against said insole portion; moving the applicator away from the insole portion; and terminating the extrusion of cement during the movement of the applicator away from the insole portion.

2. A method of wiping a selected portion of the margin of a shoe upper against the corresponding portion of the margin of a shoe insole comprising: supporting a shoe assembly that includes a last having the insole located on its bottom and the upper mounted thereon with said upper margin portion extending away from said insole; positioning an applicator against said insole portion; commencing to extiude cement from the applicator against said insole portion; moving wiping means against said upper margin portion and across said insole portion to wipe said upper margin portion against said insole portion and cause the cement to bond said portions; moving the applicator away from the insole portion and out of the path of the wiping means; and terminating the extrusion of cement during the movement of the applicator away from the insole portion.

3. A method of applying cement to a selected portion of the margin of a shoe insole preparatory to wiping the corresponding portion of the margin of a shoe upper against said insole portion comprising: supporting a shoe assembly that includes a last having the insole located on its bottom; providing an applicator having at least one hole in a surface thereof; positioning said applicator surface against said insole portion; commencing to extrude cement through said hole against said insole portion; moving the applicator away from the insole portion; and terminating the extrusion of cement during the movement of the applicator away from the insole portion.

4. A method of wiping a selected portion of the margin of a shoe upper against the corresponding portion of the margin of a shoe insole comprising: supporting a shoe assembly that includes a last having the insole located on its bottom and the upper mounted thereon with said upper margin portion extending away from said insole; providing an applicator having at least one hole in a surface thereof; positioning said applicator surface against said insole portion; commencing to extrude cement through said hole against said insole portion; moving wiping means against said upper margin portion and across said insole portion to 'wipe said upper margin portion against said insole portion and cause the cement to bond said portions; moving the applicator away from the insole and out of the path of the wiping means; and terminating the extrusion of cement during the movement of the applicator away from the insole portion.

5. A mechanism for applying cement to a selected portion of the margin of a shoe insole preparatory to wiping the corresponding portion of the margin of a shoe upper against said insole portion comprising; a support for supporting a shoe assembly that includes a last having the insole located on its bottom; an applicator mounted for movement towards and away from said insole portion; extruding means operable to extrude cement from the applicator against said insole portion; means for positioning the applicator against said insole portion; means for operating the extruding means to commence the extrusion of cement from the applicator against said insole portion; means for moving the applicator away from the insole portion; and means, responsive to the movement of the applicator away from the insole portion, for terminating the extrusion of cement during the movement of the applicator away fromthe insole portion.

6. A machine for wiping a selected portion of the margin of a shoe upper against the corresponding portion of the margin of a shoe insole comprising: wiping means mounted for movement in a wiping stroke from a retracted to an advanced position; means for initially maintaining the wiping means in its retracted position; a support for supporting a shoe assembly that includes a last having the insole located on its bottom and the upper mounted thereon with said upper margin portion extending away from the insole and facing the wiping means; an applicator mounted for movement toward and away from said insole portion; extruding means operable to extrude cement from the applicator against said insole portion; means for positioning the applicator against said insole portion; means for operating the extruding means to commence the extrusion of cement from the applicator against said insole portion; means for importing a wiping stroke to the wiping means to cause it to move against said upper margin portion and across said insole portion to wipe said upper margin portion against said insole portion and cause the cement to bond said portions; means for moving the applicator away from the insole portion and out of the path of the wiping means; and means, responsive to the movement of the applicator away from the insole portion, for terminating the extrusion of cement during the movement of the applicator away form the insole portion.

7. A mechanism for applying cement to a selected portion of the margin of a shoe insole preparatory to wiping the corresponding portion of the margin of a shoe upper against said insole portion comprising: a support for supporting a shoe assembly that includes a last having the insole located on its bottom; an applicator, having at least one hole in a surface thereof, mounted for movement toward and away from said insole portion; extruding means operable to extrude cement through said hole against said portion; means for positioning the applicator with said surface against said insole portion; means for operating the extruding means to commence the extrusion of cement through said hole against said insole portion; means for moving the applicator away from the insole portion; and means, responsive to the movement of the applicator away from the insole portion, for terminating the extrusion of cement through said hole during the movement of the applicator away from the insole portion.

8. A machine for Wiping a selected portion of the margin of a shoe upper against the corresponding portion of the margin of a shoe insole comprising: wiping means mounted for movement in a wiping stroke from a re tracted to an advanced position; means for initially maintaining the wiping means in its retracted position; a support for supporting 'a shoe assembly that includes a last having the insole located on its bottom and the upper mounted thereon with said upper margin portion extending away from the insole and facing the wiping means; an applicator, having at least one hole in a surface thereof, mounted for movement toward and away from said insole portion; extruding means operable to extrude cement through said hole against said insole portion; means for positioning the applicator with said surface against said insole portion; means for operating the extruding means to commence the extrusion of cement through said hole against said insole portion; means for imparting a wiping stroke to the wiping means to cause it to move against said upper margin portion and across said insole portion to wipe said upper margin :portion against said insole portion and cause the cement to bond said portions; means for moving the applicator away from the insole portion and out of the path of the wiping means; and means, responsive to the movement of the applicator away from the insole portion, for terminating the extrusion of cement through said hole during the movement of the applicator away from the insole portion.

9. A mechanism for applying cement to a selected portion of the margin of a shoe insole preparatory to wiping the corresponding portion of the margin of a shoe upper against said insole portion comprising: a support for supporting bottom-down a shoe assembly that includes a last having the insole located on its bottom; an applicator, having at least one hole in its upper surface, mounted for heightwise movement toward and away from said insole portion; extruding means; a conduit extending from the extruding means to the applicator to enable cement to be extruded into the applicator in response to operation of the extruding means; a connection within the applicator extending between the conduit and the hole; a stem extending upwardly of the applicator and movable within the applicator between an upper position and a lower position; a valve associated with the stem so constructed and arranged 'as to block the connection and thereby block the flow of cement from the conduit to the hole when the stem is in its upper position and to permit the flow of cement through the connection when the stem is in its lower position; means for yieldably urging the stem to its upper position; means for positioning the applicator in an upper position with its upper surface against said insole portion and the stern in its lower position due to its bearing against the insole; means for operating the extruding means to commence the extrusion of cement through the conduit, the connection within the applicator, and the hole against said insole portion; and means for moving the applicator downwardly away from the insole portion, said downward movement of the applicator enabling the stem to rise to its upper position to block the flow of cement through the connection within the applicator and thereby terminate the extrusion of cement through the hole.

10. A machine for wiping a selected portion of the margin of a shoe upper against the corresponding portion of the margin of a shoe insole comprising: wiping means mounted for movement in a wiping stroke from a retracted to an advanced position; means for initially maintaining the wiping means in its retracted position; a support for supporting bottom-down a shoe assembly that includes a last having the insole located on its bottom and the upper mounted thereon with said upper margin portion extending downwardly of the insole and facing the wiping means; an applicator, having at least one hole in its upper surface, mounted for heightwise movement toward and away from said insole portion; extruding means; a conduit extending from the extruding means to the applicator to enable cement to be extruded into the applicator in response to operation of the extruding means; a connection Within the applicator extending between the conduit and the hole; a stem extending upwardly of the applicator and movable within the applicator between an upper position and a lower position; a valve associated with the stem so constructed and arranged as to block the connection and thereby block the flow of cement from the conduit to the hole when the stem is in its upper position and to permit the flow of cement through the connection when the stem is in its lower position; means for yieldably urging the stem to its upper position; means for positioning the applicator in an upper position with its upper surface against said insole portion and the stem in its lower position due to its bearing against the insole; means for operating the extruding means to commence the extrusion of cement through the conduit, the connection within the applicator, and the hole against said insole portion; means for imparting a wiping stroke to the wiping means to cause it to move against said upper margin portion and under said insole portion to wipe said upper margin portion against said insole portion and cause the cement to bond said portions; and means for moving the applicator downwardly away from the insole and out of the path of the wiping means, said downward movement of the applicator enabling the stem to rise to its upper position to block the flow of cement through the connection and thereby terminate the extrusion of cement through the hole.

References Cited by the Examiner UNITED STATES PATENTS 2,055,483 9/1936 Engel 12-71 2,969,555 1/1961 Kamborian l2--145 3,035,287 5/1962 Vlcek et al 1212.4 3,094,726 6/ 1963 Kamborian 12-12.4 X 3,228,047 1/1966 Schwabe 12P-l2.4

PATRICK D. LAWSON, Primary Examiner. 

1. A METHOD OF APPLYING CEMENT TO A SELECTED PORTION OF THE MARGIN OF A SHOT INSOLE PREPARATORY TO WIPING THE CORRESPONDING PORTION OF THE MARGIN OF A SHOE UPPER AGAINST SAID INSOLE PORTION COMPRISING: SUPPORTING A SHOE SEMBLY THAT INCLUDES A LAST HAVING THE INSOLE LOCATED ON ITS BOTTOM; POSITIONING AN APPLICATOR AGAINST SAID INSOLE PORTION; COMMENCING TO EXTRUDE CEMENT FROM THE APPLI- 